size of gallium is less than aluminium due to d-orbitals,but why so?

2 years ago

Share

Answers : (1)

                                        

Hi Ranjita,


 


The atomic radius of the Ga is less than Al because of poor screening effect.


The atomic radius of Ga is slightly lesser than of Al because in going from Al to Ga, the electrons have already occupied 3d sub shell in Ga. The screening effect of these intervening electrons being poor, has less influence to decrease the effective nuclear charge, therefore the electrons in Ga experience more forces of attractions towards nucleus to result in lower size of Ga than Al.


 


Regards,


Ashwin (IIT Madras).



2 years ago

Post Your Answer

More Questions On Inorganic Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
The mixture of noble gases are separated by which method?
 
 
Except radon which is obtained from radioactive element radium all the other members of zero group can be isolated from air. Two different approaches are used for the isolation of noble...
  img
Raheema Javed 15 days ago
 
The mixture of noble gases can be separated by the fractionation of liquid air.Baesd on the difference in the melting poing and bioling point these can be separated.When liquid air is...
  img
Sunil Kumar FP 2 months ago
which book should be preferred for inorganic chemistry
 
 
http://www.askiitians.com/important-books-iit-jee.aspx...........................................................................................................................................
  img
Harishwar one month ago
How to find wich oxide is nuteral?
 
 
By viewing the periodic table,one can predict the nature of oxides.Acidic,basic,neutral oxides show following trends- In general, the electropositive character of the oxide's central...
  img
Aarti Gupta one month ago
 
Oxides are those chemical compounds in which one or more oxygenatoms combined with another element for e.g. Li2O.These are of different types like acidic,basic,amphoteric and neutral.Neutral...
  img
Aarti Gupta one month ago
 
Ok , you are correct is there any fixed part in the periodic table , where the element combines with oxygen and form nuteral oxide. From my guess the most probably from your answer above the...
 
Vineeth one month ago
What is the difference between sucrose, fructose and sugar?
 
 
Carbohydrates are classified into three main groups- 1 .Monosaccharides – These are known as simple sugars, as such carbohydrates cannot be broken into smaller units upon...
  img
Aarti Gupta 4 months ago
stationary orbits give energy to electrons then who will give energy to stationery orbits
 
 
Dear student, The stationary orbits donot give energy to electrons. It is the presence of electrons in certain energy shells/orbits makes the electrons in those orbits possess that energy....
  img
Sumit Majumdar 4 months ago
 
no in stationary orbit the enegy of electron is quantised.because the angular momentum(mvr) is directly proportional to n(orbit) En= -13.6z^2/n^2 thanks and regards sunil kr askIITian...
  img
Sunil Kumar FP 4 months ago
As acc. to MOT bonding molecular orbitals are stable than anti bonding molecular orbitals, but i want to know that by what percent does bonding molecular orbital is stable than anti bonding...
 
 
It depends upon the no. of electrons in bonding and antibonding orbitals, bonding will tell you the electrons that will help in forming the bond and antibonding will tell you to have the...
  img
Suraj Prasad 2 months ago
View all Questions »